Minor bug fix (#89)

* Fixing javadoc generation errors

* Adding dependency to use SLF4J logging instead of java util logging.

* More SLF4J migration

* Changed all java util logging statements to slf4j.

* Checking in the POM that goes with the release to maven reposisory.

* Removed unused imports

* Instrumented all code with SLF4J logging.

* Fixing some log statements

* Moving request-response link creation to message factory so we don't create multiple links to the same entity.

* Updaing third party notice to include SLF4J license.

* Updating distributed POM

* Renaming setContent method to setBody.

* Fixing a typo in log statement.

* Handling the special case of 0 timeout for receives. If there are no prefetched messages, receive call returns immediately with already prefetched messages.

* Correcting a log statement

* Added javadoc comments for rules package.

* Adding javadoc comments. Work in progress.

* More javadoc comments added.

* Fixing a minor bug in sender and receiver creation. Closes the messaging factory if sender or receiver creation fails.

* Fixing the issue of not renewing CBS tokens. Also a concurrency fix.

* Fixing a bug in session receiver to not repeatedly attempt accepting the same session on lock lost.

* Added some java docs.. And changed default prefetch count, based on receive mode.

* Fixing a thread unending wait bug in request-response link.

* Fixing AuthorizationFailed exceptions that pop when the conncetion is recreated.

* Minor tweaks

* Another minor fix

Author: yvgopal

azure-servicebus/src/main/java/com/microsoft/azure/servicebus/primitives/RequestResponseLink.java

@@ -223,7 +223,11 @@ public CompletableFuture<Message> requestAysnc(Message requestMessage, Duration
         {
             this.recreateInternalLinks().handleAsync((v, recreationEx) ->
             {
-                this.closeAsync();
+                if(recreationEx != null)
+                {
+                    this.closeAsync();
+                }
+                
                 return null;
             });
         }